Finding the Fourth Proportional to 7,808,790.62, 11,712,840.68 and 2,129,015.18
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Solution
The fourth proportional to 7,808,790.62, 11,712,840.68 and 2,129,015.18 is: 3,193,428.64
Step by Step Solution
- Step 1: Write the proportion equation
7,808,790.62 : 11,712,840.68 = 2,129,015.18 : x - Step 2: Convert to fraction form
7,808,790.62/11,712,840.68 = 2,129,015.18/x - Step 3: Cross multiply
7,808,790.62x = 11,712,840.68 × 2,129,015.18 - Step 4: Simplify right side
7,808,790.62x = 24,936,815,608,641.52 - Step 5: Solve for x
x = 24,936,815,608,641.52/7,808,790.62 - Step 6: Final answer
x = 3,193,428.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.